– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 4 am Sun 09 Aug Local TimeUpdates in: hr min sUpdate imminent
Issued: 4 am Sun 09 Aug Local Time
Updates in:
Update imminent hr min s
Issued: 4 am Sun 09 Aug Local Time
Updates in:
Update imminent hr min s
3 South Twin Sister Elevations: 3 Forecast Elevations: Days 1–3 Weather SummaryMostly dry. Warm (max 22°C on Sun afternoon, min 13°C on Sun night). Wind will be generally light. | Days 4–6 Weather SummaryMostly dry. Warm (max 27°C on Fri afternoon, min 16°C on Wed morning). Wind will be generally light. | |||||||||||||||||
Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 | |  |  | |  | | | | |  |  | | | | | | | |
some clouds | some clouds | some clouds | clear | clear | clear | clear | clear | some clouds | clear | rain shwrs | risk tstorm | clear | some clouds | clear | clear | clear | some clouds | |
Cloud base (m) | 6950 | 9250 | 9000 | 8050 | 3550 | 2050 | 2900 | 8600 | 8600 | |||||||||
km/h | ||||||||||||||||||
 |  |  |  |  |  | |||||||||||||
 cm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
mm | — | — | — | — | — | — | — | — | — | — | 0.2 | 0.5 | — | — | — | — | — | — |
max °C | 20 | 22 | 18 | 18 | 21 | 17 | 19 | 22 | 18 | 19 | 22 | 19 | 22 | 25 | 21 | 25 | 27 | 22 |
min °C | 17 | 22 | 13 | 15 | 21 | 14 | 16 | 22 | 15 | 16 | 22 | 16 | 18 | 24 | 18 | 21 | 27 | 18 |
chill °C | 17 | 22 | 13 | 15 | 21 | 14 | 16 | 22 | 15 | 16 | 22 | 16 | 18 | 24 | 18 | 21 | 27 | 18 |
Freezing level m | 3950 | 3850 | 3750 | 3750 | 3750 | 3950 | 3750 | 3650 | 3650 | 3500 | 3550 | 3450 | 3500 | 3550 | 3800 | 3700 | 3850 | 3900 |
 | 5:52 | — | — | 5:52 | — | — | 5:54 | — | — | 5:56 | — | — | 5:56 | — | — | 5:58 | — | — |
 | — | — | 8:32 | — | — | 8:31 | — | — | 8:30 | — | — | 8:28 | — | — | 8:25 | — | — | 8:24 |
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South Twin Sister Weather (Days 0-3):
The weather forecast for South Twin Sister is: Mostly dry. Warm (max 22°C on Sun afternoon, min 13°C on Sun night). Wind will be generally light.
South Twin Sister Weather (Days 3-6):
Mostly dry. Warm (max 27°C on Fri afternoon, min 16°C on Wed morning). Wind will be generally light.
This table gives the weather forecast for South Twin Sister at the specific elevation of 500 m. Our advanced weather models allow us to provide distinct weather forecasts for several elevations of South Twin Sister. To see the weather forecasts for the other elevations, use the tab navigation above the table. For a wider overview of the weather, consult the Weather Map of Washington.